Chemistry, 05.02.2020 10:01, cxttiemsp021
How has burning fossil fuels changed the carbon cycle?
a.
increased the amount of carbon dioxide in the atmosphere
b.
decreased the amount of carbon dioxide in the atmosphere
c.
increased the amount of carbon in the soil
d
.
decreased the amount of carbon in the soil
Answers: 3
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Which type of bond is present in hydrogen sulfide (h2s)? the table of electronegativities is given. a. hydrogen b. ionic c. nonpolar covalent d. polar covalent
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Answers: 1
How has burning fossil fuels changed the carbon cycle?
a.
increased the amount of...
a.
increased the amount of...
Mathematics, 26.07.2019 05:30